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Graphene enhanced field emission from InP nanocrystals
- Source :
- 2017 Nanotechnology 28 495705
- Publication Year :
- 2017
-
Abstract
- We report the observation of field emission from InP nanocrystals epitaxially grown on an array of p-Si nanotips. We prove that field emission can be enhanced by covering the InP nanocrystals with graphene. The measurements are performed inside a scanning electron microscope chamber with a nano-controlled W-thread used as an anode. We analyze the field emission by Fowler-Nordheim theory and find that the field enhancement factor increases monotonically with the spacing between the anode and the cathode. We also show that InP/p-Si junction has a rectifying behavior, while graphene on InP creates an ohmic contact. Understanding the fundamentals of such nanojunctions is key for applications in nanoelectronics.<br />Comment: 7 pages, 3 figures
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- 2017 Nanotechnology 28 495705
- Publication Type :
- Report
- Accession number :
- edsarx.1708.01877
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1361-6528/aa96e6